Process for treating feldspar, feldspathic rock, and similar material.



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chill the materia next reduced'by 25 TAT lh h lltllhio WALTER GLAESEB, OF BROOKLYN, NEW YGBK, ASSIGNOR T0 GEORGE I. BISHOP, OF MACEDONIA. OHIO.

:PEOCESS FOR TREATING FELDSPAR, FELDSZPATHIG ROCK, AND SIMILAR MATERIAL.

- To whom it may concern:

Be it known that I, WALTER GLr-insnn, a

subject of the German Emperor, and a resi- Feldspathic Boclgand Similar Material, of-

which the following is a full, clear, and exact description.

The object of the invention is to provide a new and improved process for treatin feldspar, feldspathic rock and like materia with a view to obtain a potash fertilizer and valuable by-products at a comparatively low cost.

In order to obtain the desired result, the material, in lump or other form, is burned at a low red heat (about 800 centigrade) for about two hours in a suitable furnace, and then the burnt material is suddenly cooled, preferabl by the use of water, to The chilled material is a suitable crusher to about 40 mesh and 15 then mixed in a suitable mixing apparatus with anhydrouscalcium chlorid,.after which the mixture is fused in the presence of air.

In practice, I have found that a good result is obtained by mixing 100 parts of the material with about 30 or more parts of anhydrous calcium chlorid. The reaction which takes place is representedby the following formula:

powdered to, at

Specification of Letters Patent.

Patented dept. id, 19117:.

Application filed September 18, 1914. Serial No. 862,058.

chlorite solution is obtained as a by-product. When it is desired to extract potash salts, the fusing process isaccomplished under a white heat (1800 centigrade and over) in the presence of air and preferably in an electric furnace. In this case the chlorid of potash volatilizes and is caught either in a cooling chamber or in water. Chlorin gas or chlorin water or sodium hypochlorite solution and a clinker are obtained as by-products. The clinker may be used in the manufacture of cement.

It is understood that by first heating the material and then suddenly cooling it, the

- hydrous calcium chlorid and then fusing the mixture at a temperature of at least 1200 centigrade and in the presence of air.

2. The process of treating feldspar, feldspathic rock and like material which consists in burning the material at a low red heat, then suddenly cooling the heated material, then mixing the cooled material with anhydrous calcium chlorid, and then fusing the mixture at a temperature of between 1200 and 1800 centigrade.

In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.

WALTER GLAESER.

Witnesses:

Tnno. HUMAN, Jn, BESSIE E. Conn.

Qopiesofl this patent may obtained for five cents each, by addressing the deuunleaioncr er Patents,

. Waaninmeu, D. iii. 

